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Re: nokia lithium polymer batteries

From: Bryan Andersen <>
Date: Tue, 4 Jan 2000 16:56:18 -0600 (CST)

Is the energy density based on 1V? If so then it's good, else it isn't all 
that great. A standard Li-Ion runs about 4170mW/oz and NiMH is 
about 2377mW/oz. These have 2018mW/oz and 1750mW/oz 
respectively if you assume a 3.7V cell (normal Li-Ion cell voltage). 
What is the cell voltage for them?

They should be much safer than standard Li-Ion or NiMH and they 
can be made into almost any shape.

>http://204.243.31.30/News/Hot/hotfive.shtml

>from above:
>   Li-Polymer is less than 8 millimeters thick and weighs just 1.1
>   ounces. Its energy density, a weight-based performance evaluation, is
>   a very high 545.5 milliamperes per ounce. Another ultra-thin Nokia
>   battery using lithium ion technology weighs 9.1 ounces and has an
>   energy density of 473 milliamps per ounce.
>   Nokia also is interested in the Li-Polymer technology because the
>  electrodes are gel-like and covered with a flexible plastic or
>  aluminum laminate foil. Other phone batteries contain liquid and have
>   hard, inflexible shells.

-- 
Bryan Andersen

http://softail.visi.com/

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